Multipole moments of Er166, Er168, Yb174, and Yb176 from 65 MeV polarized proton inelastic scattering and density dependence of the effective interaction

T. Ichihara, H. Sakaguchi, M. Nakamura, T. Noro, F. Ohtani, H. Sakamoto, H. Ogawa, M. Yosoi, M. Ieiri, N. Isshiki, S. Kobayashi

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Abstract

Differential cross sections and analyzing powers of polarized proton elastic and inelastic scattering from Er166, Er168, Yb174, and Yb176 have been measured at 65 MeV. Analysis for J=0+-6+ members of the ground state rotational band has been performed using coupled-channel calculations for scattering from deformed optical potentials. Excellent fits have been obtained for both cross sections and analyzing powers for 0+, 2+, and 4+ states and fairly good fits for the 6+ state. In the coupled-channel calculations, the multipole moments of each part of the deformed optical potentials were set to be equal. The quadrupole moments of the deformed optical potentials for these nuclei were found to be 4-6% larger than those of charge densities obtained by electron scattering and Coulomb excitation. A folding model calculation shows that the main part of this difference is attributed to the density dependence of the effective interaction. Mass number dependence of the phenomenological range of the effective interaction can be also reproduced from the folding calculation using the density-dependent effective interaction.

Original languageEnglish
Pages (from-to)1228-1242
Number of pages15
JournalPhysical Review C
Volume29
Issue number4
DOIs
Publication statusPublished - Jan 1 1984

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proton scattering
multipoles
inelastic scattering
moments
folding
interactions
cross sections
elastic scattering
electron scattering
quadrupoles
nuclei
ground state
scattering
excitation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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Multipole moments of Er166, Er168, Yb174, and Yb176 from 65 MeV polarized proton inelastic scattering and density dependence of the effective interaction. / Ichihara, T.; Sakaguchi, H.; Nakamura, M.; Noro, T.; Ohtani, F.; Sakamoto, H.; Ogawa, H.; Yosoi, M.; Ieiri, M.; Isshiki, N.; Kobayashi, S.

In: Physical Review C, Vol. 29, No. 4, 01.01.1984, p. 1228-1242.

Research output: Contribution to journalArticle

Ichihara, T, Sakaguchi, H, Nakamura, M, Noro, T, Ohtani, F, Sakamoto, H, Ogawa, H, Yosoi, M, Ieiri, M, Isshiki, N & Kobayashi, S 1984, 'Multipole moments of Er166, Er168, Yb174, and Yb176 from 65 MeV polarized proton inelastic scattering and density dependence of the effective interaction', Physical Review C, vol. 29, no. 4, pp. 1228-1242. https://doi.org/10.1103/PhysRevC.29.1228
Ichihara, T. ; Sakaguchi, H. ; Nakamura, M. ; Noro, T. ; Ohtani, F. ; Sakamoto, H. ; Ogawa, H. ; Yosoi, M. ; Ieiri, M. ; Isshiki, N. ; Kobayashi, S. / Multipole moments of Er166, Er168, Yb174, and Yb176 from 65 MeV polarized proton inelastic scattering and density dependence of the effective interaction. In: Physical Review C. 1984 ; Vol. 29, No. 4. pp. 1228-1242.
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abstract = "Differential cross sections and analyzing powers of polarized proton elastic and inelastic scattering from Er166, Er168, Yb174, and Yb176 have been measured at 65 MeV. Analysis for J=0+-6+ members of the ground state rotational band has been performed using coupled-channel calculations for scattering from deformed optical potentials. Excellent fits have been obtained for both cross sections and analyzing powers for 0+, 2+, and 4+ states and fairly good fits for the 6+ state. In the coupled-channel calculations, the multipole moments of each part of the deformed optical potentials were set to be equal. The quadrupole moments of the deformed optical potentials for these nuclei were found to be 4-6{\%} larger than those of charge densities obtained by electron scattering and Coulomb excitation. A folding model calculation shows that the main part of this difference is attributed to the density dependence of the effective interaction. Mass number dependence of the phenomenological range of the effective interaction can be also reproduced from the folding calculation using the density-dependent effective interaction.",
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AU - Ichihara, T.

AU - Sakaguchi, H.

AU - Nakamura, M.

AU - Noro, T.

AU - Ohtani, F.

AU - Sakamoto, H.

AU - Ogawa, H.

AU - Yosoi, M.

AU - Ieiri, M.

AU - Isshiki, N.

AU - Kobayashi, S.

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N2 - Differential cross sections and analyzing powers of polarized proton elastic and inelastic scattering from Er166, Er168, Yb174, and Yb176 have been measured at 65 MeV. Analysis for J=0+-6+ members of the ground state rotational band has been performed using coupled-channel calculations for scattering from deformed optical potentials. Excellent fits have been obtained for both cross sections and analyzing powers for 0+, 2+, and 4+ states and fairly good fits for the 6+ state. In the coupled-channel calculations, the multipole moments of each part of the deformed optical potentials were set to be equal. The quadrupole moments of the deformed optical potentials for these nuclei were found to be 4-6% larger than those of charge densities obtained by electron scattering and Coulomb excitation. A folding model calculation shows that the main part of this difference is attributed to the density dependence of the effective interaction. Mass number dependence of the phenomenological range of the effective interaction can be also reproduced from the folding calculation using the density-dependent effective interaction.

AB - Differential cross sections and analyzing powers of polarized proton elastic and inelastic scattering from Er166, Er168, Yb174, and Yb176 have been measured at 65 MeV. Analysis for J=0+-6+ members of the ground state rotational band has been performed using coupled-channel calculations for scattering from deformed optical potentials. Excellent fits have been obtained for both cross sections and analyzing powers for 0+, 2+, and 4+ states and fairly good fits for the 6+ state. In the coupled-channel calculations, the multipole moments of each part of the deformed optical potentials were set to be equal. The quadrupole moments of the deformed optical potentials for these nuclei were found to be 4-6% larger than those of charge densities obtained by electron scattering and Coulomb excitation. A folding model calculation shows that the main part of this difference is attributed to the density dependence of the effective interaction. Mass number dependence of the phenomenological range of the effective interaction can be also reproduced from the folding calculation using the density-dependent effective interaction.

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